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Commit 031b2963 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "PixelCopy: align with legacy GLConsumer::computeTransformMatrix" am: 178f9165 

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2144501



Change-Id: I3c69c59a9124d407562b7e9fddb78a9d4b1300ec
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents f5c48daa 178f9165

libs/hwui/Readback.cpp

+30 −5
Original line number Diff line number Diff line
@@ -90,11 +90,36 @@ CopyResult Readback::copySurfaceInto(ANativeWindow* window, const Rect& inSrcRec 


    SkRect srcRect = inSrcRect.toSkRect();



    SkRect imageSrcRect =

    SkRect imageSrcRect = SkRect::MakeIWH(description.width, description.height);

    SkISize imageWH = SkISize::Make(description.width, description.height);

    if (cropRect.left < cropRect.right && cropRect.top < cropRect.bottom) {

        imageSrcRect =

                SkRect::MakeLTRB(cropRect.left, cropRect.top, cropRect.right, cropRect.bottom);

    if (imageSrcRect.isEmpty()) {

        imageSrcRect = SkRect::MakeIWH(description.width, description.height);

        imageWH = SkISize::Make(cropRect.right - cropRect.left, cropRect.bottom - cropRect.top);



        // Chroma channels of YUV420 images are subsampled we may need to shrink the crop region by

        // a whole texel on each side. Since skia still adds its own 0.5 inset, we apply an

        // additional 0.5 inset. See GLConsumer::computeTransformMatrix for details.

        float shrinkAmount = 0.0f;

        switch (description.format) {

            // Use HAL formats since some AHB formats are only available in vndk

            case HAL_PIXEL_FORMAT_YCBCR_420_888:

            case HAL_PIXEL_FORMAT_YV12:

            case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:

                shrinkAmount = 0.5f;

                break;

            default:

                break;

        }



        // Shrink the crop if it has more than 1-px and differs from the buffer size.

        if (imageWH.width() > 1 && imageWH.width() < (int32_t)description.width)

            imageSrcRect = imageSrcRect.makeInset(shrinkAmount, 0);



        if (imageWH.height() > 1 && imageWH.height() < (int32_t)description.height)

            imageSrcRect = imageSrcRect.makeInset(0, shrinkAmount);

    }



    ALOGV("imageSrcRect = " RECT_STRING, SK_RECT_ARGS(imageSrcRect));



    // Represents the "logical" width/height of the texture. That is, the dimensions of the buffer
@@ -153,7 +178,7 @@ CopyResult Readback::copySurfaceInto(ANativeWindow* window, const Rect& inSrcRec 
     */



    SkMatrix m;

    const SkRect imageDstRect = SkRect::MakeIWH(imageSrcRect.width(), imageSrcRect.height());

    const SkRect imageDstRect = SkRect::Make(imageWH);

    const float px = imageDstRect.centerX();

    const float py = imageDstRect.centerY();

    if (windowTransform & NATIVE_WINDOW_TRANSFORM_FLIP_H) {